Academic literature on the topic 'Current differential protection'

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Journal articles on the topic "Current differential protection"

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Onah, Aniagboso John, and Edwin Ejiofor Ezema. "Transformer Differential Protection." European Journal of Engineering Research and Science 5, no. 8 (2020): 891–98. http://dx.doi.org/10.24018/ejers.2020.5.8.2035.

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Overcurrent and earth fault protective equipment employing time grading and directional detection cannot provide correct discrimination on all power networks and in many cases clearing times for some faults would not be acceptable. Differential protection is an alternative overcurrent protective scheme, which is used to protect individual sections of networks or pieces of equipment, such as transformers, generators, e.t.c. Thus, where protection co-ordination is difficult using time delayed over current and earth fault protection, or where fast fault clearance is critical, then differential pr
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Onah, Aniagboso John, and Edwin Ejiofor Ezema. "Transformer Differential Protection." European Journal of Engineering and Technology Research 5, no. 8 (2020): 891–98. http://dx.doi.org/10.24018/ejeng.2020.5.8.2035.

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Overcurrent and earth fault protective equipment employing time grading and directional detection cannot provide correct discrimination on all power networks and in many cases clearing times for some faults would not be acceptable. Differential protection is an alternative overcurrent protective scheme, which is used to protect individual sections of networks or pieces of equipment, such as transformers, generators, e.t.c. Thus, where protection co-ordination is difficult using time delayed over current and earth fault protection, or where fast fault clearance is critical, then differential pr
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M., Arshad Shehzad Hassan, Song Guobing, Wang Chenqing, Jin Xingfu, and Tahir Sohaib. "Evaluation of Capacitive Current Compensation Strategies to Current Differential Protection for Long Distance Transmission Lines." International Journal of Engineering Works (ISSN:2409-2770) 2, no. 5 (2015): 66–68. https://doi.org/10.5281/zenodo.18098.

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In UHV and EHV, distributive capacitive current to current differential protection has serious problem. Nowadays, to deal with the problem of distributed capacitive current a stimulating modern technology is being used in current differential protection with high operating threshold. Many schemes have been used into current differential protection for capacitive current compensation, which was based on shunt reactor, phasor compensation algorithm, Bergeron method. Those techniques were also reducing operating speed and sensitivity of current differential protection. To solve the problem of dis
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Kaustubh, Sonar, Bobade Chetan, and Chavate Shrikant. "Differential Protection Scheme for Power Transformer Protection." Journal of Emerging Trends in Electrical Engineering 3, no. 3 (2021): 1–5. https://doi.org/10.5281/zenodo.5535782.

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<em>Power transformers are normally protected by differential protection relays.</em> <em>Differential protection is the main protection used for protecting power transformers from internal faults only.</em> <em>External faults have the same effect on the two sets of current transformers used for differential protection.</em> <em>Mal operation of differential protection occurs when an external fault affects only one set of current transformers and causes false tripping. This paper describes how to provide standardized, current based, differential protection for any three-phase power transforme
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Kuprienko, Viktor. "Bias signal control in differential protection." MATEC Web of Conferences 212 (2018): 01035. http://dx.doi.org/10.1051/matecconf/201821201035.

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The problem is to ensure the stability of the differential protection functioning at deep saturation of the cores of electromagnetic current transformers. The errors of current transformers support the greatest influence on the operation of differential protections. Features of the differential protection operation at deep saturation of current transformers in short-circuit transient modes are considered. Comparison results of various algorithms for the formation of a bias signal are given. The control capability of the bias signal generation algorithm was analyzed. The harmonic composition of
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Patil, Bhushan Prataprao, and Shah Paresh Jaychand Dr. "A REVIEW ON FAULT CLASSIFICATION METHODOLOGIES IN TRANSFORMER"." International Journal of Research and Analytical Reviews 6, no. 1 (2019): 449–57. https://doi.org/10.5281/zenodo.8434792.

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This paper presents a survey on different fault classification methodologies in transformer, when the transformer becomes operational, it experiences a magnetizing inrush current with a magnitude that can range from six to eight times the rated current. This can cause the differential relay to trigger incorrectly and cutting off the transformer&#39;s supply lines without need. To avoid deceptively tripping the differential relay and make sure the transformer is operating properly, it&#39;s critical to differentiate between inrush current and internal fault current. The second harmonic restrain
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Loman, M. S., and V. S. Kachenya. "DETECTION OF CURRENT CIRCUITS FAULT FOR DIFFERENTIAL CURRENT PROTECTION." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 61, no. 2 (2018): 108–17. http://dx.doi.org/10.21122/1029-7448-2018-61-2-108-117.

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False operation of the differential current protection leads to tripping of the most important electrical power objects. Fault of current transformer’s secondary circuits is one of the most often cause of false operation of the differential current protection. Early determination of this malfunction increases the reliability of the differential current protection and reduces the number of false trips. In the present article the methods of secondary open circuit determining for the differential protection are described. Some of the methods react instantly to the malfunction of secondary current
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Dambhare, Sanjay, S. A. Soman, and M. C. Chandorkar. "Adaptive Current Differential Protection Schemes for Transmission-Line Protection." IEEE Transactions on Power Delivery 24, no. 4 (2009): 1832–41. http://dx.doi.org/10.1109/tpwrd.2009.2028801.

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Qin, Yu, Minghao Wen, Yu Bai, Yuxi Wang, and Zeya Fang. "A novel current differential protection for MMC-HVDC lines." Journal of Physics: Conference Series 2113, no. 1 (2021): 012053. http://dx.doi.org/10.1088/1742-6596/2113/1/012053.

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Abstract The present current differential protection for MMC-HVDC transmission lines has absolute selectivity and powerful ability to withstand high transition resistance, while it is easily affected by distributed capacitive current and data synchronization error. To solve the problem above, this article proposes a novel current differential protection scheme. The distributed capacitive current can be calculated by integrating the linear voltage distribution in real-time. Thus, the differential value of the midpoint currents of DC line, which are calculated based on the low-pass filtered meas
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Pérez-Molina, M. J., P. Eguía, D. M. Larruskain, I. Aranzabal, and E. Torres. "Performance of a protection system for DC grids." Renewable Energy and Power Quality Journal 20 (September 2022): 18–23. http://dx.doi.org/10.24084/repqj20.209.

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The development of High Voltage Direct Current (HVDC) transmission technology is still challenging due to unresolved technical issues, mostly in terms of protecting the system. The overcurrents and voltage drop produced by fault conditions are severely dangerous to the Voltage Source Converters’ (VSC) electronic components. Hence, fast protection systems are needed. This paper proposes a fullselective protection system in conjunction with hybrid HVDC circuit breakers. This protection system employs the rate-ofchange-of-voltage and the differential-current algorithms for primary and backup faul
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Dissertations / Theses on the topic "Current differential protection"

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Kangvansaichol, K. "Multi-zone current differential protection for transmission networks." Thesis, Queen's University Belfast, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419469.

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Hossain, Monir. "Performance Optimization of the Differential Protection Schemes." ScholarWorks@UNO, 2018. https://scholarworks.uno.edu/td/2566.

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Current differential protection principle is superior in terms of sensitivity and speed of operation in comparison with other protection principle used in power systems. From the last five decades, various current differential protection schemes are widely used to protect busbars, transformers, and short-transmission lines. The deployment of high capacity microwave and optical fiber technologies redefined the line protection systems by facilitating the use of current differential protection schemes for long transmission lines. The common application issue of these schemes is mis-operation due
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Wheatley, John Malcolm. "A current differential feeder protection for use with leased voice frequency communications circuits." Thesis, Northumbria University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245264.

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Hossain, Monir. "Fault Discrimination Algorithm for Busbar Differential Protection Relaying Using Partial Operating Current Characteristics." ScholarWorks@UNO, 2016. http://scholarworks.uno.edu/td/2263.

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Differential protection is the unit protection system which is applied to protect a particular unit of power systems. Unit is known as zone in protection terminology which is equivalent to simple electrical node. In recent time, low impedance current differential protection schemes based on percentage restrained characteristics are widely used in power systems to protect busbar systems. The main application issue of these schemes is mis-operation due to current transformer (CT) saturation during close-in external faults. Researchers have suggested various solution of this problem; however, ind
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Husseini, A. H. "Design and testing of a new microprocessor-based current differential protection scheme for teed circuits." Thesis, University of Bath, 1991. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760616.

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Habib, MD Zakaria. "The Impacts of UHV AC Transmission Lines on Traditional Line Differential Protection Functions." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-228389.

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UHV transmission lines have several advantages when it comes to transferring of bulk amount ofpower in long distances. Although the technology is available from 1980’s, the number of UHVtransmission lines around the world has been increased in the beginning of this century in orderto supply the high demand of electricity. The number is going to increase even more in the nextfew years. Thus, it is important to study the UHV line characteristics and update the powersystem equipment as well as the operation procedure accordingly.UHV transmission lines exhibits some distinct phenomena which are no
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Chiwaya, A. A. W. "Polarised polyphase current differential protection for distribution feeder circuits using a digital voice frequency communications channel." Thesis, University of Bath, 1994. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760664.

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Jorge, David Calhau. "Transformadas wavelet aplicadas à proteção diferencial de transformadores de potência." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-18022016-093145/.

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Transformadores de potência são dispositivos que requerem atenção especial devido a sua grande importância ao sistema elétrico de potência no qual ele está conectado. Geralmente relés diferenciais são utilizados como proteção primária em transformadores de potência. Nestes relés, a corrente diferencial é comparada com um nível de ajuste e caso ocorra uma falta interna, o transformador deverá ser desconectado do restante do sistema. Entretanto, a simples detecção da presença de uma corrente diferencial não é suficiente para distinguir faltas internas de outras situações que também podem produzi
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Bernardes, Alexandre Paciencia. "Um esquema completo de proteção diferencial de transformadores para testes em um relé digital." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-16072006-122259/.

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Este trabalho apresenta um procedimento completo de simulação da proteção digital diferencial aplicada a transformadores de potência, visando o emprego deste à avaliação do comportamento de relés comercialmente disponíveis. Foi escolhido o software ATP (Alternative Transients Program) como ferramenta para a simulação de distintas situações sobre um sistema diferencial de proteção aplicado a um transformador de 25 MVA. Dentre as ocorrências evidenciadas, destacam-se: situações de faltas internas, faltas externas, situações de energização e energização com falta interna do transformador, condiçã
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Silva, Rogério Cesar Serapião. "Projeto diferencial de geradores síncronos: o uso de redes neurais artificiais para identificação e correção da saturação dos transformadores de corrente." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-16042012-155039/.

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Este trabalho tem como objetivo apresentar um algoritmo de proteção diferencial de geradores baseado em Redes Neurais Artificiais (RNAs), que seja robusto e confiável em situações onde os algoritmos padrões podem apresentar dificuldades, como no caso, da saturação de TCs. O algoritmo desenvolvido é constituído por dois módulos principais: a) um módulo de detecção da saturação dos transformadores de corrente (TCs) empregados na proteção diferencial de geradores e; b) um módulo de correção das formas de onda distorcidas devido à saturação dos TCs. Os módulos utilizam RNAs para detectar e corrigi
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Books on the topic "Current differential protection"

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Fischer, Normann. Line Current Differential Protection: A Collection of Technical Papers Representing Modern Solutions. 2014.

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Wheatley, John Malcolm. A current differential feeder protection for use with leased voice frequency communications circuits. 1997.

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Taylor, John-Paul, and Alan Thomas. Alzheimer’s disease. Oxford University Press, 2013. http://dx.doi.org/10.1093/med/9780199644957.003.0033.

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Alzheimer’s disease (AD) is a well recognised clinicopathological entity and the most common cause of dementia. This chapter critiques the several sets of newly proposed criteria for making the diagnosis of (AD) at different stages in the disease process, in the context of demand for earlier diagnosis and emerging biomarkers. The differential diagnosis and types of different cognitive symptoms are reviewed and the prevalence and pattern of the many non-cognitive symptoms associated with AD are considered. The management of non-cognitive symptoms is also updated, especially the circumstances in
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Badimon, Lina, and Gemma Vilahur. Atherosclerosis and thrombosis. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199687039.003.0040.

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Atherosclerosis is the main underlying cause of heart disease. The continuous exposure to cardiovascular risk factors induces endothelial activation/dysfunction which enhances the permeability of the endothelial layer and the expression of cytokines/chemokines and adhesion molecules. This results in the accumulation of lipids (low-density lipoprotein particles) in the extracellular matrix and the triggering of an inflammatory response. Accumulated low-density lipoprotein particles suffer modifications and become pro-atherogenic, enhancing leucocyte recruitment and further transmigration across
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Badimon, Lina, and Gemma Vilahur. Atherosclerosis and thrombosis. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199687039.003.0040_update_001.

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Atherosclerosis is the main underlying cause of heart disease. The continuous exposure to cardiovascular risk factors induces endothelial activation/dysfunction which enhances the permeability of the endothelial layer and the expression of cytokines/chemokines and adhesion molecules. This results in the accumulation of lipids (low-density lipoprotein particles) in the intimal layer and the triggering of an inflammatory response. Accumulated low-density lipoprotein particles attached to the extracellular matrix suffer modifications and become pro-atherogenic, enhancing leucocyte recruitment and
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Badimon, Lina, and Gemma Vilahur. Atherosclerosis and thrombosis. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199687039.003.0040_update_002.

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Atherosclerosis is the main underlying cause of heart disease. The continuous exposure to cardiovascular risk factors induces endothelial activation/dysfunction which enhances the permeability of the endothelial layer and the expression of cytokines/chemokines and adhesion molecules. This results in the accumulation of lipids (low-density lipoprotein particles) in the intimal layer and the triggering of an inflammatory response. Accumulated low-density lipoprotein particles attached to the extracellular matrix suffer modifications and become pro-atherogenic, enhancing leucocyte recruitment and
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Book chapters on the topic "Current differential protection"

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Christopoulos, C., and A. Wright. "Current-differential protective schemes." In Electrical Power System Protection. Springer US, 1999. http://dx.doi.org/10.1007/978-1-4757-5065-2_5.

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Wright, A., and C. Christopoulos. "Current-differential protective schemes." In Electrical Power System Protection. Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-3072-5_5.

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Gao, Guangling, Keqing Pan, Zheng Xu, Xianghua Pan, Xiuhua Li, and Qiang Luo. "On Differential Protection Principle Compatible Electronic Transducer." In Proceeding of 2021 International Conference on Wireless Communications, Networking and Applications. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2456-9_38.

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AbstractThe technology of digital interface compatible electronic transducer is studied. The measuring and protective equipment is explored to make a new application of current and voltage signals from the electronic transducer so that electronic transducer differential signal is directly used as a protection input. The new differential protection principle based on the differential input signal is put forward. And the theoretical analysis and simulation shows that the protection principles proposed are feasible.
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Wang, Zuowei, Hong Zhang, Dongchao Liu, et al. "New Principle of Fault Data Synchronization for Intelligent Protection Based on Wavelet Analysis." In Proceeding of 2021 International Conference on Wireless Communications, Networking and Applications. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2456-9_87.

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AbstractIn order to eliminate the influence of the delay error of the sampled value in the data link on the longitudinal differential protection device, this paper proposes a protection data self-healing synchronization algorithm based on wavelet transform to calculate the moment of sudden change. First, calculate the mutation amount of the sampled data at each end in real time. When the mutation amount threshold is exceeded, it is determined that the multi-terminal system has a short-circuit fault. Then, according to the sudden change characteristics of the collected current waveform, the wav
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Christopoulos, C., and A. Wright. "The protection of overhead lines and cables by current-differential schemes." In Electrical Power System Protection. Springer US, 1999. http://dx.doi.org/10.1007/978-1-4757-5065-2_9.

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Wright, A., and C. Christopoulos. "The protection of overhead lines and cables by current-differential schemes." In Electrical Power System Protection. Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-3072-5_9.

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Gao, Chenguang, Yanjun Li, Zhijie Wang, Wenhuan Wang, Yadong Liu, and Yinping Zhou. "Optimization of Differential Protection for Converter Transformers Based on Lateral Differential Current Identification." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1420-9_82.

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Kamenska, Anhelita, and Jekaterina Tumule. "Migrants’ Access to Social Protection in Latvia." In IMISCOE Research Series. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-51241-5_17.

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Abstract This chapter discusses the link between migration and welfare in Latvia. In general, the Latvian social security system may be described as a mixture of elements taken from the basic security (where eligibility is based on contributions or residency, and flat-rate benefits are provided) and corporatist (with eligibility based on labour force participation and earnings-related benefits) models. The country has experienced significant social policy and migration-related changed during the past decades. This chapter focuses on the current Latvian legislation, by closely examining the dif
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Xu, Haiyang, Xiaochun Xu, Hua Xie, et al. "Adaptability Analysis of Current Differential Protection in Multi DC Power Grid with High Proportion Renewable Energy." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2024. https://doi.org/10.1007/978-981-97-8832-3_59.

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Riahinia, Shahin, Amir Ameli, Mohsen Ghafouri, and Abdulsalam Yassine. "Cyber-Security of Protection System in Power Grids—Part 2: Case Studies on Securing Line Current Differential Relays." In Power Systems Cybersecurity. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-20360-2_10.

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Conference papers on the topic "Current differential protection"

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Zhou, Wei, Jindao Zhang, Chaofan He, et al. "A High-Sensitivity Current Differential Protection for Renewable Energy Station." In 2024 3rd International Conference on Power Systems and Electrical Technology (PSET). IEEE, 2024. https://doi.org/10.1109/pset62496.2024.10808305.

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Zhang, Yuxin, Guoqing Zhang, Guizhong Wang, et al. "Algorithm for Pilot Current Differential Protection Based on Wideband Quantities." In 2025 7th International Conference on Information Science, Electrical and Automation Engineering (ISEAE). IEEE, 2025. https://doi.org/10.1109/iseae64934.2025.11041905.

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Liang, Yuchen, Haoran Chen, and Sheng Sui. "Adaptive Current Differential Protection Method Based on the Hausdorff Distance Algorithm." In 2024 IEEE 7th International Conference on Information Systems and Computer Aided Education (ICISCAE). IEEE, 2024. https://doi.org/10.1109/iciscae62304.2024.10761675.

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Southern, E. P. "GPS synchronised current differential protection." In 6th International Conference on Developments in Power Systems Protection. IEE, 1997. http://dx.doi.org/10.1049/cp:19970095.

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Wang, H., D. Du, Z. Bo, et al. "An Integrated Current Differential Protection Scheme." In 2006 International Conference on Power System Technology. IEEE, 2006. http://dx.doi.org/10.1109/icpst.2006.321945.

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Miller, Hank, John Burger, Normann Fischer, and Bogdan Kasztenny. "Modern line current differential protection solutions." In 2010 63rd Annual Conference for Protective Relay Engineers. IEEE, 2010. http://dx.doi.org/10.1109/cpre.2010.5469504.

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Dambhare, S., S. Soman, and M. Chandorkar. "Adaptive current differential protection schemes for transmission-line protection." In Energy Society General Meeting. IEEE, 2010. http://dx.doi.org/10.1109/pes.2010.5590163.

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Liu, Yinglin, Guomin Luo, Lin Zhou, Jinghan He, Ming Dai, and Tianlei Zang. "Current increment based DC differential protection method." In 2017 IEEE Conference on Energy Internet and Energy System Integration (EI2). IEEE, 2017. http://dx.doi.org/10.1109/ei2.2017.8245667.

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Hodder, Steven, Bogdan Kasztenny, and Normann Fischer. "Backup considerations for line current differential protection." In 2012 65th Annual Conference for Protective Relay Engineers. IEEE, 2012. http://dx.doi.org/10.1109/cpre.2012.6201224.

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Li, Jian, Xiaopeng Zhang, Wei Yao, Jiangong Xu, Xiaoliang Shi, and Fei Ren. "Inverse Time Differential Current Protection for Microgrid." In 2022 IEEE 5th International Electrical and Energy Conference (CIEEC). IEEE, 2022. http://dx.doi.org/10.1109/cieec54735.2022.9845849.

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Reports on the topic "Current differential protection"

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Cheng, Zheyuan, John Pagano, Eric Udren, Juergen Holbach, Hadi Khani, and Matthew Reno. Synchrophasor-Based Zonal Current Differential Protection for Secondary Low Voltage Networks. Office of Scientific and Technical Information (OSTI), 2024. https://doi.org/10.2172/2480096.

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Weinschenk, Craig, Daniel Madrzykowski, and Paul Courtney. Impact of Flashover Fire Conditions on Exposed Energized Electrical Cords and Cables. UL Firefighter Safety Research Institute, 2019. http://dx.doi.org/10.54206/102376/hdmn5904.

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A set of experiments was conducted to expose different types of energized electrical cords for lamps, office equipment, and appliances to a developing room fire exposure. All of the cords were positioned on the floor and arranged in a manner to receive a similar thermal exposure. Six types of cords commonly used as power supply cords, extension cords, and as part of residential electrical wiring systems were chosen for the experiments. The non-metallic sheathed cables (NMB) typically found in residential electrical branch wiring were included to provide a link to previous research. The basic t
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van Gemert, Rob, Per Holliland, Konrad Karlsson, Niklas Sjöberg, and Torbjörn Säterberg. Assessment of the eel stock in Sweden, spring 2024 : fifth post-evaluation of the Swedish eel management. Department of Aquatic Resources, Swedish University of Agricultural Sciences, 2024. http://dx.doi.org/10.54612/a.4iseib7eup.

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For decades, the population of the European eel has been in severe decline. In 2007, the European Union decided on a Regulation establishing measures for the recovery of the stock, which obliged Member States to implement a national Eel Management Plan by 2009. Sweden submitted its plan in 2008. According to the Regulation, Member States shall report regularly to the EU-Commission, on the implementation of their Eel Management Plans and the progress achieved in protection and restoration. The current report provides an assessment of the eel stock in Sweden as of spring 2024, intending to feed
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Yunovich and Thompson. L51886 Performance of Magnesium Anodes. Pipeline Research Council International, Inc. (PRCI), 2003. http://dx.doi.org/10.55274/r0010391.

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Magnesium anodes are provided to the corrosion control industry by a number of domestic and international manufacturers and distributors. Due to the difficulty and time involved in performance testing, anode composition is commonly the only criterion used for quality control by the end users. However, experience has shown that compliance of the anode chemical composition with the ASTM B843 Standard Specification for Magnesium Alloy Anodes for Cathodic Protection can be misleading and does not always differentiate between the anodes of different quality. Thousands of magnesium anodes are produc
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Joshi, Anuradha, Jalia Kangave, and Vanessa van den Boogaard. Engendering Taxation: a Research and Policy Agenda. Institute of Development Studies, 2024. http://dx.doi.org/10.19088/ictd.2024.017.

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Increased attention has been paid to the gender dimensions of taxation in recent years, though there has been limited research on the subject – particularly in lower-income contexts. Understanding how tax policies might affect women in lower-income countries is important at the current time, when governments are looking for new ways to increase domestic revenue – particularly through expanding the tax base. Given that women have historically represented only a small part of the formal workforce in these contexts, a shift towards indirect taxes and taxing the informal economy are likely to have
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